$4 Prof. E. Kellogg on the Passage of Lightning. 
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PHYSICS, MATHEMATICS, CHEMISTRY, M 
CHANICS, &c. ae 
Ayr. XIV.—Pror. E. Kexxoce on the passage of Light- 
To the Editor, 
Some of the effects described below are such as are not 
often produced by the descent of the electric fluid ; at least, 
I have not witnessed them, nor seen them described. If 
you think the account may interest your readers, please to 
insert it in your Journal. 
in diameter, standing one or two hun 
se hraim Tucker, in Vernon, Conn. The 
wv marks of its course down the tree, but tore up 
‘the earth very much at the foot of it and made, in one di- 
rection, a furrow eight or ten feet in length, by following a 
root that ran three or four inches below the surface, and 
throwing off the turf in ragged portions. No other effects 
of the fluid were to be seen nearthetree. At the distance of 
thirty feet from the tree runs a post-wal/, bounding the mead- 
ow and separating it from the highway ;—a low wall of small 
stones, surmounted by two rails supported by posts standing 
in the wall. In the highway near the wall at this place, be- 
gin to appear marks of the passage of the fluid below the 
surface. The sod in some places seemed to be a little 
raised along the line of its course towards the road. The 
road here is formed in the middle of a highway sixty-six 
feet wide, as turnpike roads are commonly built, by raising 
a path twenty-feet wide or more, with earth taken from the 
ges of it, which are thus sunk so as to form ditches com- 
four or five feet wide, and one or two deep. From 
the wall to the ditch, and across the road and ditch, the 
fluid certainly passed under grouad, and almost in a straight 
line. Before reaching the ditch, it passed under a thick 
On the 28th of May, 1824, the lightning fell upon a tree, 
ab hundred yards 
